Description: 100% brand new with high quality backlight color: green color: black size: approx.2.1inch battery: cr2032h application: mountain bike, road bike , fixed gear Features: Bicycle odometer with LCD backlight. Portable, durable and comfortable. Readable LCD display with large screen. Easy to control, with fashion touch, ideal Companion for your bike. Easy to install, fixed with mounting accessories. Perfect to use when you are hiking, climbing, horseback riding and other outdoor activities. Ideal assistant for bike training. Time display Function can also be used as a wonderful device on the go. Anti-interference signal. Backlight shows super waterproof, powerful machine core, which is easy to use Note: Please allow minor errors due to by manual measurement. The colors will be a little difference for the different monitor.